The method which provides considerable flexibility in finding the Liapunov’s function is:(a) Krasovskii’s method(b) Variable gradient method(c) Constant method(d) Non-variable gradient methodI got this question during an interview.The above asked question is from The Direct Method andConstructing of Liapunov for the Linear and Non-Linear System in section Liapunov’s Stability Analysis of Control Systems

The method which provides considerable flexibility in finding the Liap

1.	The method which provides considerable flexibility in finding the Liapunov’s function is:(a) Krasovskii’s method(b) Variable gradient method(c) Constant method(d) Non-variable gradient methodI got this question during an interview.The above asked question is from The Direct Method andConstructing of Liapunov for the Linear and Non-Linear System in section Liapunov’s Stability Analysis of Control Systems
Answer» The CORRECT answer is (b) Variable gradient METHOD For explanation I would say: Variable gradient method provides considerable flexibility in finding the LIAPUNOV’s function as the quadratic form APPROACH is too restrictive.

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